Crazy Paving Cave is named after its floor. The clay tile pavement took several hundred years to form. Please don't touch it!
The Box Canyon Cave is huge. Somewhere towards the end is a tunnel on the right. You can go on there for quite a while. When you get to a hole where you can see the daylight turn off the torch. The ceiling is covered in glow worms there! Not everybody might be able to get outside through that hole and those who want to give it a try should consider getting quite dirty.
I recommend good footwear, a headlamp, a rainjacket and maybe rainpants to prevent your clothes from getting dirty. Please note that it's quite cool inside the caves and there are wetas and spiders (the one on the photos was bigger than my palm) in Box Canyon Cave.